Columbus, Ohio -- Ohio said Monday it's boosting the dosages of its lethal injection drugs even as it stands by the January execution of an inmate who made unusual snorting and gasping sounds that led to a civil rights lawsuit by his family and calls for a moratorium.

The state's new policy considerably increases the amount of the sedative used in its two-drug combination and raises the amount of the painkiller, which are injected simultaneously, according to a court filing. The state said it was making the changes "to allay any remaining concerns" after the last execution.